Freezer Door Alarm Overview A compact, battery powered alarm that monitors door and window status using a sensitive magnetic sensor. The device issues voice alerts and other alarm methods when a door or window is left open, helping prevent energy loss and unattended access in homes and commercial settings. Key benefits Prevents energy waste and product spoilage by alerting you when a freezer, refrigerator, or other door is left open. Reduces the risk of unnoticed access to secured areas by providing clear voice notifications. Easy to install and operate with no technical skills required, making it suitable for homeowners and facility managers. Features Smart sensor detection: Builtin magnetic contact sensor precisely tracks open and closed states and triggers alerts when a door remains open. Multiple alarm modes: Diversified alarm methods including voice notification and sound alert with adjustable volume to suit different environments. Energy efficient: Battery operated design and energy saving materials help extend battery life and lower operating cost. Durable construction: Made from ABS for reliable daily use in various indoor settings. Compact size: Measures 6.2 x 5.2 x 2 cm (2.4 x 2 x 0.8 in), allowing discreet placement on doors, frames, or appliances. Simple installation: Multiple mounting options for fast setup without tools or wiring. Performance and compatibility Works with refrigerators, freezers, display cases, safes, air conditioners, security doors, windows, and other doors where open state monitoring is required. Designed for homes, commercial venues, industrial monitoring, schools, shops, basements, garages, and stores. Typical use scenarios Kitchen freezer in a household or restaurant: Receives a voice alert if a freezer door is left ajar to protect food and reduce energy loss. Retail or convenience store cold display: Notifies staff if a refrigerated display door is left open during busy hours. Storage room or equipment closet in a school or office: Alerts personnel to secure doors and prevent unauthorized access or temperaturesensitive losses. Specifications Material: ABS Size: 6.2 x 5.2 x 2 cm (2.4 x 2 x 0.8 in) Power: Battery operated (batteries not included) Key attributes: diversified alarm methods, energy saving and environmentally friendly materials Package contents Freezer Door Alarm x 1 set Notes Item color may vary slightly from the picture due to different lighting and screen settings. Please allow a 1 to 2 cm measurement tolerance due to manual measurement.